ZA816637B - Process for delignifying lignocellulose material - Google Patents

Process for delignifying lignocellulose material

Info

Publication number: ZA816637B
Authority: ZA; South Africa
Prior art keywords: lignocellulose material; delignifying; delignifying lignocellulose; lignocellulose
Prior art date: 1980-09-25

Application number

ZA816637A

Other languages

English (en)

Inventor

Dieter Werthemann

Original Assignee

Ciba Geigy

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-09-25

Filing date

1981-09-24

Publication date

1982-09-29

1981-09-24 Application filed by Ciba Geigy filed Critical Ciba Geigy

1982-09-29 Publication of ZA816637B publication Critical patent/ZA816637B/xx

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes

ZA816637A 1980-09-25 1981-09-24 Process for delignifying lignocellulose material ZA816637B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH718380		1980-09-25

Publications (1)

Publication Number	Publication Date
ZA816637B true ZA816637B (en)	1982-09-29

Family

ID=4321202

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA816637A ZA816637B (en)	1980-09-25	1981-09-24	Process for delignifying lignocellulose material

Country Status (9)

Country	Link
EP (1)	EP0049221B1 (xx)
JP (1)	JPS5789691A (xx)
AU (1)	AU547453B2 (xx)
BR (1)	BR8106122A (xx)
CA (1)	CA1174810A (xx)
DE (1)	DE3161711D1 (xx)
FI (1)	FI69654C (xx)
NO (1)	NO813257L (xx)
ZA (1)	ZA816637B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6702921B2 (en) *	2001-05-01	2004-03-09	Ondeo Nalco Company	Methods to enhance pulp bleaching and delignification using an organic sulfide chelating agent
US7351764B2 (en)	2004-03-31	2008-04-01	Nalco Company	Methods to enhance brightness of pulp and optimize use of bleaching chemicals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NZ185937A (en) *	1976-12-13	1979-10-25	Australian Paper Manufacturers	Delignification of lignocellulosic material with amine based liquor containing quinones or hydroqinones
US4248663A (en) *	1978-07-05	1981-02-03	Pulp And Paper Research Institute Of Canada	Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound

1981
- 1981-09-21 FI FI812935A patent/FI69654C/fi not_active IP Right Cessation
- 1981-09-21 EP EP81810386A patent/EP0049221B1/de not_active Expired
- 1981-09-21 DE DE8181810386T patent/DE3161711D1/de not_active Expired
- 1981-09-23 CA CA000386480A patent/CA1174810A/en not_active Expired
- 1981-09-24 BR BR8106122A patent/BR8106122A/pt unknown
- 1981-09-24 AU AU75642/81A patent/AU547453B2/en not_active Ceased
- 1981-09-24 ZA ZA816637A patent/ZA816637B/xx unknown
- 1981-09-24 NO NO813257A patent/NO813257L/no unknown
- 1981-09-25 JP JP56150805A patent/JPS5789691A/ja active Pending

Also Published As

Publication number	Publication date
BR8106122A (pt)	1982-06-15
NO813257L (no)	1982-03-26
AU547453B2 (en)	1985-10-24
EP0049221A1 (de)	1982-04-07
CA1174810A (en)	1984-09-25
DE3161711D1 (en)	1984-01-26
JPS5789691A (en)	1982-06-04
FI69654C (fi)	1986-03-10
AU7564281A (en)	1982-04-01
EP0049221B1 (de)	1983-12-21
FI812935L (fi)	1982-03-26
FI69654B (fi)	1985-11-29

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